Mine car



w. v; JOHNSON Filed Aug. a. 1923 Oct. 6 1925- Oct. 6, 1925- w. v. JOHNSON MINE CAR mmm, WJ )A m MN S XQN. n r

2 e mfv/ RMO? Filed Aug. B.

.infested Oct. s. 1925. p

UNITED STAT-Es PATENT OFFICE.

'WARREN V. J'OHINSON, OF BLOOMSBURG, PENNSYLVANIA, ASSIGNOR TO AMERICAN CAR AND lIIFOUNDRY COMPANY, OAF NEW YORK, N. Y., A CORPORATION O-F NEW JERSEY.

MINE CAR.

'Appncatn mea August s, 1923. Serin No. 656,372.

To all who@ t may concern.'

- Be it known that I, WARREN V. JOHNSON, residing at Bloomsburg, Columbia County, State of` Pennsylvania, vand being `a citizen of the United States, have invented certain new and useful Improvements in a 4Mine Car, of which the following is a full, clear, and exact description, such as will enable -others skilled in the art to which it appertains to make and touse the same, reference being had to the accompanying drawings, which illustrate the preferred form of the invention, though it is to be understood that v the invention is not limited to the exact details of construction shown and described, as it is obvious that vvarious modifications thereof within the scope of the claims `w1ll occur to persons skilled in the art.

In said drawings: Figure 1 is a plan view of an mine car with a portion of the iioor broken mounting the gate bearings on the side Wall.

Y 'transverse' body bands heretofore used. to

draft superstructure; and

Figure 51s a modiiedside wallosuperstructure involVingQthe use of a bottom engaging angle strip.

My invention relates to mine and other industfial oars. having wood underframingv and steel/frame superstructure, and has for one of its objects the-elimination of the brace the body of the car and lfor the support of the iooring.

A further. ob'ect -1 s mechanism whic utillzes, inthe final stages of its movement, the longitudinal tie rods connecting [the underframeymembers and providing the -necessary 'support for. the;

moving arts` of said. mechamsm.

- In sai drawings, 10 is the wooden under- .frame comprising the longitudinal side sill members 11, the end sill members 12 and Vother cross members 13 intermediate the end sills 12. The end *sills* 12 are preferably of Limproved l provide draft less depththan the side sills `11 but are oonnected to them with theirupper faces relal tively iush to provide a fiat support for the flooring 23. The side sills 11 have their ends abutting the inner faces -of the end sills 12 andare preferably connected to the end sills.at points inside of the plane of the end sill ends as best shown in Flgures 1 and 3. The side and end sills are connected by inside connection pieces 14, said connection pieces being secured by a suitable number -of bolts 17 and 18 disposed horizontally in the side and end sills respectively. Suitable pockets20 may be secured to the inner faces of the side sills 11 yby bolts 19 to provide seats for the transverse intermediate members 13, and deriving a portion of their support from Irespectively adjaoenttie rods 21 tying the side sills4 together and passing through said pockets as best shown in Figure 1. The underframe members are further connected longitudinally by the draft rods 50'more fully hereinafter referred to. Mounted upon the underframe is the superstructure framed in 4steel and comprising preferably a steel floorl portion^23 having the marginal side'flanges 24 secured to the lower ends of a plurality of upright framing members y25 and 26 forming respectively the intermediate and corner post elements of the side wall structure. At their upper ends said posts are connected by means of the side wall protection |strip 27 forming the top chord element of the side wall framing. Diagonal braces 28 connect the strip 27 and floor flange 24 at points between the respectively adjacent intermediate and cor- 'l @ner post members 25 and 26. Thus assembled, with the floor flanges formmg the lower chord element of the truss structure, a ri id side lwall framing is provided to whic may be applied the usual wall boards 30 removably secured to the framing by bolts 31 and overlying.' the flooring. Instead of utilizing a lower chord `element formingan integral part of the car floor, a `chord member of commercial rolledL shape such as thev angle 32`eould be -substituted and separate flooring 33 assembled therewith as shown in Figure 5. In both embodiments of the side wall structure the Wall boards '30 are held rigidtop wall board housed within the substan-f tially ,channel shaped top chord 27. Thus l1y in position with the upper edge of the positioned, the wall boardsI and framing members when secured together will mutual* ly reinforce'each other to prevent outward bulging of the side wall structure and carry a large percentage of the load.

The f ixed end wall 35 of the car maybe similarly assembled with intermediate end posts 36 and corner posts 26. The corner posts 26 are preferably common to the end wall 35 and the side wall structures as shown in the drawings but may be separate members if desired. The end wall top and bottom chords may form part of similar members in the side wall structures, but it may be found expedient to form said members separately.

At the gate end of the car the side walls are tied togetherby means of a rod 37 held in brackets 38 mounted at the adjacent ends of the side walls and prevented from shifting longitudinally by cotters 39, or the like, passing through said rod immediately adjacent the outer sides of the brackets 38. The rod serves as a pintle for the hinges 40 of the swinging gate 41, and the gate is kept clear of the side walls by the spacing thimbles 42 sleeved on the rod between abutmentsV formed by the inner sides of rod brackets 38 and outer sides of the hinges 40- The gate is locked by the bar latches 44 pivoted on the gate at 45 and having their free ends engaging the keepers 46 on the car.

The draft mechanism for the car comprises a pair of longitudinal tie rods 50 extending through the end sills 12 and fitted at their ends with securing nuts 51 having a bearing against wear plates 52 secured to the outer faces of the end sills. Drawbars 53 extend inwardly through the end sills 12 and are mounted at their inner ends for yielding movement under draft strains. Such mounting comprises the transversely extending follower bars 54 to which the drawbars are pivotally secured by pins 55. The followers ride upon the tieJ rods 50 as best shown in Figures 1 and 2 and are movable with the drawbars 53. Suitable draft springs 56 are mounted oir the drawbars between their respective followers land end sills providing abutments for the ends of the springs. Also mounted upon the tie rods 50 Vbetween the ends of the followers 54 and their respective end sills are` spacing sleeves 57 designed to prevent abnormal compression of the springs 56 under exceptional draft strains and to distribute the stresses of draft over a larger area on the 'respective end sill members 12, thence through the tie rods to the opposite end sill member.

- To protect the protruding drawbar heads from damage upon impact with other cars, buffer blocks 60 are secured to each end sill on opposite sides of the drawbar and preferably in line with the side sill members 11 of the underframe. They may be secured as shown in the drawings by bolts 61 taking one flange of the outside connection piece 15 connecting the side and end sills, the other flange of the connection taking bolts 17 securing. inside connections 14 to the side sills. The drawhead sides of the buffers are secured by bolts 62 taking the end sill and draft reinforcement plate 63 on the innerl face of the end sill.

From the foregoing it will be noted that the reinforcement plate 63 acts not only as a wearing piece for the spring 56 and spacing sleeves 57 but serves also to connect the buffer blocks 60 and the side sills 11 together and to the end sill. It will also be noted that the car body rests upon the end sills, the intermediate cross members 13, and the side sills 11, and extends outwardly beyond the side sills, the body derivino its support in the plane of its side' walls fi'om the side wall framing trusses supported at their ends upon the end sills to which they are secured. The-flooring is secured to the underframe members in any suitable manner, preferably by bolts 59 as best shown in Figures 3 and 5.

onstructed as described the car is well adapted to withstand the rough usage of mining service. is ruggedly and economically assembled. and easily repaired. The completed body is 'mounted upon any approved ruiming gear shown in broken lines in Figures 1 and 2 of the drawings and designatedV in its entirety by the reference numeral 9.

`What I claim is:

1. A car structure comprising an underframe having side and end sills, a flooring mounted upon said sills and extending outwardly beyond the side sills, side walls secured to said flooring and at one end of the car resting upon an end sill, an end wall connected with the side walls and supported by the end sill at the said end of the car, a

gate at the opposite end of the car, and mounting means for the gate connected wlth the side walls and retaining the side walls in predetermined spaced relation.

2. A car structure comprising an underframe having side and end sills, a iooring mounted upon said sills and extending outwardly beyond the side sills, side walls extending upwardly from said fiooring and having their ends resting upon said end sills, an end wall disposed above one end sill and .connected with said side walls, .an end gate ,at the opposite end of said side walls, and a mounting rod for saidv gate conf nected with the last mentioned end portions of said side walls and serving as a tie rod for the side walls.

3. A car having an underframe having side and end sills and a metal frame superstructure having side and end walls, the side walls of said framing structure being positioned outside the plane of said side walls lao and comprising top and bottom chord members and connecting upright members, and a fiooring mounted on said underframe and extending beyond said side sills and having said bottom chord members connected therewith.

l. A car having an undcrframe including side and end sills and a metal frame superstructure having side, walls comprising top and bottom chord members andconnecting uprights positioned in a plane outside of the side sills and supported at their ends upon the end sills, and a looring mounted upon said underframe and connecting'said bottom chord members and uprights of the framing.

A car having an underframe .including side and end sills and a metal frame superstructure having side walls comprising top and bottom chord members and connecting upright members positioned in a plane outside. ot' the side sills and supported at their ends upon the end sills, a plurality of wall boards secured to said side wall framing members, and a flooring underlying said wall boards and connecting said bottom chord members and uprights of the framing.

G. A car structure comprising an under-t frame` having side and end sills, a flooring mounted upon said sills and extending outwardly beyond the side sills, side walls extending upwardly from said flooring along the sides thereof and having their ends resting upon said end sills, an end wall connected with the side walls at one end of the car structure and disposed above an end sill, and an end gate connected with the other end portions of said side walls.

7 A car underframe comprising connected side and end sills, longitudinal extending tie rods disposed between the side sills in spaced relation to each other and having their end portions carried by said end sills, drawbars slidable through said end sills and extending inwardly between the tie rods and connected with the inner ends of said drawbars. and resilient means between the cross heads and end sills for yieldably holding the drawbars against outward movement.

8. A car -undertrame comprising connected side and end sills. longitudinally extending tie rods disposed between the side sills in spaced relation to each other and having their end'portions carried by said end sills, drawbars extending longitudinally between the tie rods and disposed inwardly and ontwardly of the end sills, cross head slidably carried by said tie rods and pivotally connected with'the inner ends of said drawbars to mount the drawbars for longitudinal sliding movement and transverse swinging movement, springs upon the drawbars between the cross heads and end sills to resist outward movement of the drawbars, and means upon the tie rods between the cross heads and end sills for limiting outward movement of the drawbars.

9. In a car underframe comprising side and end sills, transverse and longitudinal tie rods respectively connecting said sills, draft mechanism yieldingly mounted on the longitudinal rods adjacent the end sills, and a wear and tie plate on'the inner face of the respective end sills in position to engage said draft mechanism, said plate being adapted to connect said side sills together and to the respective end sill.

In witness whereof I have hereunto set my hand.

WARREN V. JOHNSON. 

